Allows for tighter heel side turns and improved maneuverability. Improve your balance and control.
THE ULTIMATE TRAIL BIKE
The Stumpjumper ST models are snappy and nimble, yet Incredibly versatile—the perfect rigs for riders seeking both efficiency and capability. The Stumpjumper ST Alloy 27.5 makes that winning combo affordable, with components that are big on performance and small on dollar signs.
The innovative sidearm frame design makes a lighter, better-handling bike. By directly connecting all three mounting points of the rear-end and shock to the frame, we've increased both stiffness and performance over bumps. End result? Total control.
Our in-house suspension-tuning team develops custom shock tunes, perfectly paired to each bike's kinematics. We call this Rx Tune and while it's not the easy way to build a suspension bike, it's worth it. You feel Rx Tune as perfectly-balanced suspension.
SMART PARTS PICK
• 27.5 wheels accentuate the Stumpjumper ST's playful on-trail feel.
• 130-millimeters of suspension courtesy of a RockShox Recon RL fork.
• SX Eagle 12-speed drivetrain gives you single-ring simplicity and gearing to spare.
Details & Specs
Front: Tektro Gemini Comp, hydraulic disc, resin pad, 200mm
Back: Tektro Gemini Comp, hydraulic disc, resin pad, 180mm
|Shifters/ Derailleur||SRAM SX Eagle, trigger, 12-speed
Back: SRAM SX Eagle
|Frame||M5 alloy chassis and rear end, asymmetrical design, 27.5 Trail Geometry, threaded BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 130mm of travel
|Wheels/ Rims/Inner Tube||
Double-wall alloy, 27mm internal width
Purgatory, GRID casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.3" Presta, 40mm valve
|Crank & Chain||SRAM SX Eagle, Powerspline, 170mm
SRAM SX Eagle, 12-speed
|Seat||Body Geometry Myth:155 XS/S, Body Geometry Henge:143 M/L/XL, steel rails
||Cassette||SRAM PG-1210 Eagle, 11-50t
Front: Specialized, sealed cartridge bearings, 15x110mm thru-axle, 32h
Back: Specialized, sealed cartridge bearings, 12x148mm thru-axle, 32h
|Fork||RockShox Recon RL, Motion Control damper with low-speed compression to lockout, 46mm offset, rebound adjust, 15x110mm Boost™ Maxle® Lite thru-axle, 130mm of travel
||Tape/Grips||Specialized Sip Grip, half-waffle, slip-on
|Stem||Specialized, 3D-forged alloy, 4-bolt, 7-degree rise
||Seatpost||TransX dropper, 34.9mm, XS: 100mm, S: 125mm, ML/XL: 150mm Travel
||Specialized Trail, 6061 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 780mm, 31.8mm clamp
||Shock||X-Fusion 02 Pro RL, Rx Trail Tune, rebound adjust, lockout 190x45mm